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Chemical Formulas And Chemical Equations
Test Description: Easy
Instructions: Answer all questions to get your test result.
1) Atom is to element as molecule is to
A
subscript
B
mixture
C
nucleus
D
compound
2) Which example is a compound?
A
Si
B
He
C
CO
D
Co
3) The materials before a chemical reaction are called
A
yields.
B
reactants.
C
atoms.
D
products.
4) Materials present BEFORE a chemical reaction
A
yields
B
product
C
reactants
D
chemicals
5) Chemical reactions are represented by
A
chemical formulas
B
chemical compounds
C
chemical symbols
D
chemical equations
6) How many elements are in NaHCO3?
A
3
B
6
C
4
D
8
7) What shows the number of molecules?
A
coefficient
B
subscript
C
product
D
reactants
8) How many atoms of carbon are in are in C12H22O11?
A
3
B
22
C
11
D
12
9) A subscript shows the number of
A
molecules
B
compounds
C
elements
D
atoms
10) Which is NOT a chemical formula?
A
Na
B
HE
C
Ca
D
Al
*select an answer for all questions
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